Frame for large press



April 28, 1970 c. STAPLES 3,508,429

- FRAME Foa LARGE PRESS Filed May 13, 1968 FIG. 1A N Figa I B lo fao fMaw United States Patent 3,508,429 FRAME FOR LARGE PRESS Charles F.Staples, 4456 Samoset Ave., Royal Oak, Mich. 48072 Filed May 13, 1968,Ser. No. 736,904 Int. Cl. B21j 13/04 U.S. Cl. 72-455 2 Claims lABSTRACTOF THE DISCLOSURE This invention relates to forging presses of unlimitedsize and unlimited capacity and more particularly in an improved framefor such forging presses in which the forging pressure is retained bymultiple strands of wire being assembled and retained under tension, incombination with steel reinforced concrete. Said concrete being cast ina permanent retaining structure of rolled steel plate. The use of largealuminum forgings is to eliminate assembly of bits and pieces to saveman hours. Also to produce a stronger component of less weight. Theselarge forgings allow a large latitude in part configuration and thematerial can be placed where it will be needed and will serve to thebest advantage.

Various forging presses have 'been designed and built heretofore, toproduce large forgings for the Air Force and for Aerospace requirements;however, the size of forgings that can be produced today is limited tothe 50,000 ton presses now available.

In the general arrangement of a large hydraulic press today forinstance, the crown containing the main hydraulic cylinders is at thetop of the press and is supported by several tie rods in a verticalposition. The slide rides up and down and is guided on these tie rods.The bed is stationary and forms the foundation of the press. Oneweakness of this type press is the tendency of the crown to move orvibrate sidewise when under load during the forging operation. The tierods sustain the weight of the crown. The tie rods used in aconventional press require large expensive forgings and long expensiveman hours to machine; also, there are very few machines having thecapacity to machine these large tie rods.

The object of this invention is to provide a press frame of rigidconstruction comprising a steel frame and concrete in combination withmultiple strands of wire tendons. The strands f wire tendons assembledunder tension around the frame.

Another object is to provide a press frame that is adaptable tohorizontal use or to vertical use.

It is another object of this invention to provide a huge closed dieforging press of optimum tonnage in the range of 200,000 tons foranticipated future aircraft and aerospace requirements for largealuminum, titanium, steel, and superalloy forgings.

It is another object of this invention to provide a frame for forgingpresses in which the pressure of forging is retained by a plurality ofconvolutions of wire tendons assembled under tension.

Another object is to provide a frame for a machine in ice which thestrain bearing members are under tension at all times.

Further objects, features, and advantages of this invention will becomeapparent from a consideration of the following description, the appendedclaims, and the accompanying drawing in which:

FIGURE 1 is a top plan view of the frame when in a horizontal position.

FIGURE 2 is a side elevation view of FIG. l, shown in partial section ason line B-B.

FIGURE 3 is an end elevation view of FIG. 1, shown in section as on lineA-A.

Referring now to the drawing wherein like numerals refer to like partsthroughout the various views: A cover 10 is made up of smaller pieceswelded together to form one large plate; base 11 being made up in thegeneral configuration as used in cover 10; up standing side wall 12 iscontoured and forms an outside retainer for concrete mix 18, and thisside Wall 12 also is a spacer for maintaining cover 10, and base 11 inparallel relation to each other.

A container 22 into which the press operating mechanism is assembled isformed by up standing side walls 13, 14, 15, 16, and these side wallsform an inside container for concrete mix 18.

The outside retainer Wall 12 and the inside container walls 13, 14, 15,and 16 may -be spaced apart by concrete reinforcing bars, said bars maybe welded to the inside faces of said container walls.

Cover 10 and base 11 are secured to side walls 14 and 15 by bolts 19.

After concrete mix 18 is poured into place, cover 10 is secured byvbolts 19. Additional concrete may then be added thru apertures 21.

A heavy coating of hydraulic cement 23 completely surrounds the concretemix 18. Hydraulic cement adheres strongly to metals and to regularconcrete, forming a bond to metal side walls and concrete mix 18; thuspreventing concrete dust that may otherwise have a tendency to arise.

Tendons 17- shown in enlarged scale, are wrapped around wall 12 andsecured in place under controlled tension. The ends of -the tendons maybe butt welded together or otherwise secured. These tendons counteractthe pressure exerted during the forging operation. They may be square,round, flat or other shaped.

The overhanging sections of cover 10 and base 11 are secured by studsand nuts 20.

This frame may also be used for other machines, such as heavy dutypresses in the manufacture of man made diamonds, etc.

It will be understood that the specific construction of the improvedforging press frame which are herein disclosed and described is notintended to indicate limits of the invention, the scope of which isdefined by the following claims.

What is claimed is:

1. A frame for containing an operating mechanism for operating the slideof a forging press, and for containing forging dies of various size andshape, said frame for counter balancing forging pressure, comprising acontainer having end walls in opposed vertical parallel position forcounter balancing forging forces said container having vertical parallelside Walls said end walls and said side walls forming an inner frame forpoured concrete an outer frame completely surrounding said inner framearranged with open places between said inner fra-me and said outer frameand spaced apart from said inner frame the space between said inner walland said outer wall containing concrete a base plate and a cover' platefor retaining said concrete v Wire tendons wrapped around said outerwall said wire tendons being secured under tension.

2. In a frame for containing the operating mechanism of a machinecomprising an inner containing wall an outer containing wall spacedaround said inner containing wall poured concrete filling the spacebetween said inner containing wall and said outer containing Wall aplurality of tendons wrapped about the outer surface of said outercontaining wall said tendons being stressed and secured while understress to form a load carrying means a base member and a cover membermeans for retaining the said poured concrete '4 References Cited UNITEDSTATES PATENTS FOREIGN PATENTS 10/1952 France.

CHARLES W. LANHAM, Primary Examiner GENE P. CROSBY, Assistant ExaminerU.S. Cl. X.R

